医学原虫 medical protozoon 概论 Characters: 单细胞真核生物 体积微小 构造简单,具生命的基本特征和功能 可寄生于细胞、体液、组织或腔道中,有致病性、非致病性之分 Medical protozoon Protozoa: above 65000 species Medical protozoa: about 40 species Asexual binary fission(二分裂) multiple fission(多分裂) budding(出芽生殖) Sexual gametogony(配子生殖) conjugation(结合生殖) How to reproduce? How to cause disease? proliferation(增殖作用) Spreading(播散能力) opportunistic infection Classfication According to anelles(运动器官): Pseudopodium(伪足): 阿米巴 Flagellum(鞭毛): 鞭毛虫 Cilia(纤毛): 纤毛虫 no anelles: 孢子虫 Amoeba Free-living:nonpathogenic amoeba pathogenic:耐格里阿米巴, 棘阿米巴 commensalism: 迪斯帕内、结肠内、齿龈、微小内巴、哈门氏内、布氏嗜碘 parasitism:溶组织内阿米巴!!! Entamoeba histolytica 溶组织内阿米巴 move with pseudopodium (伪足) amoeba dysentery(痢疾阿米巴)
